
TWIC cards, or Transportation Worker Identification Credentials, are used by workers who need access to secure areas of maritime facilities and vessels. They can be used as a valid form of identification at airport security checkpoints, though some sources advise against this, as TSA agents may not always accept them. To use a TWIC card for TSA Precheck, the Known Traveler Number must be added to the boarding pass.
| Characteristics | Values |
|---|---|
| Can you use TWIC at the airport? | Yes, but it's complicated. |
| What is TWIC? | TWIC stands for Transportation Worker Identification Credential. |
| Who issues TWIC? | Transportation Security Administration (TSA) |
| Who can apply for TWIC? | U.S. citizens, lawful permanent residents, naturalized citizens, or nonimmigrant aliens, asylees, or refugees who are in lawful status. |
| How long does it take to get TWIC? | Processing times may exceed 45 days. |
| How long is TWIC valid for? | 5 years |
| Can TWIC be used as a primary form of identification at the airport? | TWIC is considered a valid form of identification at the airport, but some TSA agents may not recognize it. It is recommended to use it as a secondary form of ID. |
| Can TWIC be used for TSA Precheck? | Yes, but you need to add the "Known Traveler Number" to your boarding pass. |
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What You'll Learn

TWIC cards are a valid form of ID at airports
TWIC cards, or Transportation Worker Identification Credentials, are issued by the Transportation Security Administration (TSA) to workers who require access to secure areas of the nation's maritime facilities and vessels. The TSA conducts a background check on applicants before issuing the card. While TWIC cards are a valid form of ID at airports, their use as a primary form of identification when passing through security checkpoints has been described as "complicated".
TWIC cards are accepted by the TSA as a valid form of identification for boarding planes. TSA officers are trained to recognize the TWIC as an acceptable form of ID. However, certain airports, facilities, or vessels may request additional information to verify one's identity. Thus, it is recommended to check the access requirements of individual authorities, owners, or operators before relying solely on a TWIC card for identification.
TWIC cards can be used as a secondary form of ID at airport security checkpoints. In the absence of a primary ID, such as a driver's license, travelers may be asked to present secondary forms of identification that include identifying information such as a photo, address, phone number, social security number, or date of birth. While there is no standard list of accepted secondary IDs, having a TWIC card can provide an alternative form of identification when necessary.
Additionally, TWIC cards qualify for TSA Precheck, an expedited security screening program. To utilize this benefit, individuals must add their TWIC number, located on the back bottom left corner of the card, as the "Known Traveler Number" when booking their flight or obtaining their boarding pass. This will ensure that TSA Precheck is indicated on the boarding pass, facilitating a smoother security screening process at the airport.
It is important to note that TWIC cards may not always be recognized by TSA agents at airport security checkpoints. In such cases, individuals may need to provide additional forms of identification or rely on their primary ID. Overall, while TWIC cards are a valid form of ID at airports, travelers should be prepared for potential challenges or inconsistencies in their acceptance and consider carrying alternative forms of identification when traveling.
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TSA agents may not always recognise TWIC cards
While the TWIC card is recognised by the TSA as a valid form of identification, some travellers have reported issues with individual TSA agents not recognising the card.
TWIC stands for Transportation Worker Identification Credential. The card is required for workers who need access to secure areas of maritime facilities and vessels. It is issued by the TSA, which also operates airport security checkpoints.
The TSA states that a valid unexpired TWIC can be used to board planes, and that TSA officers are trained to recognise the TWIC as an acceptable form of identification. However, some travellers have reported that individual TSA agents have tried to run their TWIC cards through a machine, only to find that the machine cannot read the card.
In addition, travellers have reported that while their TWIC card qualifies for TSA Precheck, individual TSA agents have not accepted the card or recognised it as valid. In these cases, travellers have been advised to add the "Known Traveller Number" to their boarding pass so that it says "TSA Precheck" on it.
It is recommended that travellers with a TWIC card use it as a secondary form of identification at airport security checkpoints, rather than relying on it as their primary form of ID. This will help to ensure that they can still pass through security even if the individual TSA agent is not familiar with the TWIC card.
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TWIC cards can be used for TSA Precheck
The Transportation Security Administration (TSA) has expanded its TSA PreCheck™ eligibility to include all active Transportation Worker Identification Credential (TWIC®) cardholders. This means that TWIC® cardholders who are U.S. citizens, U.S. nationals, or lawful permanent residents can use their TWIC® credentials to obtain TSA PreCheck when flying. This benefit is available at no extra cost and allows travellers to keep their shoes, light outerwear, and belt on, as well as their laptop in its case and their carry-on food and liquids.
To be eligible for TSA PreCheck with a TWIC® card, cardholders must meet certain criteria. In addition to having a valid TWIC® card, they must be a U.S. citizen, U.S. lawful permanent resident, or U.S. national, and they must have been approved for a TWIC® outside of the TSA's waiver process. They also must not be under investigation as a result of TSA's recurrent vetting.
To participate in TSA PreCheck, TWIC® cardholders need to enter the Credential Identification Number (CIN) from the back of their TWIC® card in the known traveler number (KTN) field when making airline reservations with a participating airline. The CIN serves as the KTN for TWIC® cardholders, and a TSA PreCheck indicator will be printed on the boarding pass if they are eligible for TSA PreCheck. It is important to note that TWIC® cardholders will not receive a separate KTN.
The TSA recommends that applicants enrol for TWIC® a minimum of 60 days before they require a valid TWIC®, as processing times may exceed 45 days. Applicants can pre-enrol online or complete the process in person at an application centre. They will need to provide required documentation, be fingerprinted, and have their photo taken, as well as pay a non-refundable fee valid for five years.
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TWIC cards are useful for protecting passports from damage
The TWIC card, or Transportation Worker Identification Credential, is a valid form of identification at airports. TSA officers are trained to recognize the TWIC as an acceptable form of ID. This means that, in theory, you can use your TWIC card at airport security instead of your passport.
However, some sources advise against relying on your TWIC card for identification at airport security. In practice, TSA agents may not always accept the card, and it may be difficult to get through security without a passport. In this case, a TWIC card can be used as a secondary form of ID.
Using a TWIC card at airport security can help to protect your passport from damage. TSA agents may not always handle passports with care, and they can become torn or damaged during the security process. By using a TWIC card instead, you can keep your passport safe and in good condition.
Additionally, using a TWIC card can speed up the security process. With a TWIC card, travelers can obtain TSA PreCheck, which allows them to leave their shoes, light outerwear, and belt on, and keep their laptop in its case. This expedited screening process can make the airport experience faster and more efficient, reducing the risk of damage to luggage and personal items, including passports.
Overall, while the TWIC card may not always be accepted as a primary form of ID at airport security, it can be a useful tool for protecting passports from damage. By using a TWIC card, travelers can keep their passports safe and secure, while still meeting the identification requirements for air travel.
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TWIC cards can be used as a secondary ID at airports
TWIC cards, or Transportation Worker Identification Credential cards, are a valid form of ID at airports. However, it is recommended that you do not rely solely on your TWIC card for identification when passing through airport security. This is because, despite being a valid form of primary identification, TSA agents may not always recognise the card or know what it is.
TWIC cards can be used as a secondary form of ID at airports. TSA agents may request additional information to verify your identity, such as a photo, address, phone number, social security number, or date of birth. In this case, a TWIC card can be useful as a secondary form of identification.
To use your TWIC card as a secondary ID at the airport, you must add the ID number on the back bottom left corner as your "Known Traveller Number" when booking your flight or obtaining your boarding pass. You can do this by requesting that the counter agent add it to your ticket and reprint it. If you are a reward member for any of the airlines, you can add your known traveler number to your profile, and it will automatically show up every time.
It is important to note that while TWIC cards are a valid form of identification, certain airports, facilities, or vessels may request additional information to verify your personal identity. Therefore, it is always a good idea to check the access requirements of individual authorities, owners, or operators before your travel.
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Frequently asked questions
Yes, a valid TWIC card can be used as a primary form of identification at airport security checkpoints. However, some recommend against using it as TSA agents may not always accept it. It is best to use a driver's license or passport instead.
TWIC stands for Transportation Worker Identification Credential. This card is required for workers who need access to secure areas of maritime facilities and vessels in the US.
You can apply for a TWIC card online or in person at an application centre. You will need to provide required documentation, be fingerprinted, and take a facial photo. There is also a non-refundable fee that is valid for five years.










































